Cowboys center Travis Frederick has neurological disorder

ARLINGTON, Texas (AP) — Dallas Cowboys center Travis Frederick said Wednesday he has been diagnosed with a rare neurological disorder that causes weakness in various parts of the body, and the four-time Pro Bowl player isn't sure on a timetable for a return.

Frederick said he has received two treatments for Guillain-Barre Syndrome over the past 48 hours and that the treatments will continue for several days.

"I am very optimistic about my condition and the immediate future, as I have been told that the illness was detected at a fairly early stage," Frederick said. "My doctors have told me...